Abstract Physisorption of hydrogen in nanoporous materials offers an efficient and competitive alternative for storage. At low temperatures (e.g. 77 K) moderate pressures (below 100 bar) molecular H 2 adsorbs reversibly, with very fast kinetics, at high density on the inner surfaces such as zeolites, activated carbons metal–organic frameworks (MOFs). This review, by experts Task 40 ‘Energy Stor...